MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
SHA3-384 hash: 42152d68165817b132a79fa982ba6e3c4c558284423e6a0684a6156091785f4e70d71bb5bbacbe03dc2fc5a5fb993110
SHA1 hash: 2d30673cc1175bb003c5cd538e338d1f0072e763
MD5 hash: 84afeb0f3f99a109ecfa225e3251eccb
humanhash: sierra-saturn-echo-xray
File name:SecuriteInfo.com.Win32.PWSX-gen.23729.15045
Download: download sample
Signature Formbook
Create hunting rule
File size:712'192 bytes
First seen:2024-01-24 03:23:51 UTC
Last seen:2024-01-25 16:14:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:30WfDJPhz6NVHyV32W6s+b+7P3WvMYGapImjECV3vnXk4PdXO/fqCa6Dnp1:EMPhz6NVHvW6sekPmMxSDJtf3O/fqt87
Threatray 5'150 similar samples on MalwareBazaar
TLSH T1BAE4235532652F37F7EEA7F92462A55447B9A661B448F3C88CD2A08F4EF9B50CB042C3
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 68707194b2b2b200 (5 x AgentTesla, 3 x Formbook)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
356
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/472607/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Win32.PWSX-gen.23729.15045.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65b082d5fc0458d7ffd7f099/reports/84ca8535-b998-4252-ad16-86deb3f9eadf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/57a20091-104d-4ede-9c56-2a4f501fbb18
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1380000
Signature
.NET source code contains potential unpacker
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1380000 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 24/01/2024 Architecture: WINDOWS Score: 100 18 smtp.cwiemeevent.com 2->18 20 us2.smtp.mailhostbox.com 2->20 22 ip-api.com 2->22 28 Found malware configuration 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 7 other signatures 2->34 7 SecuriteInfo.com.Win32.PWSX-gen.23729.15045.exe 3 2->7         started        signatures3 process4 signatures5 36 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->36 38 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->38 40 Injects a PE file into a foreign processes 7->40 42 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->42 10 SecuriteInfo.com.Win32.PWSX-gen.23729.15045.exe 15 2 7->10         started        14 SecuriteInfo.com.Win32.PWSX-gen.23729.15045.exe 7->14         started        16 SecuriteInfo.com.Win32.PWSX-gen.23729.15045.exe 7->16         started        process6 dnsIp7 24 ip-api.com 208.95.112.1, 49729, 80 TUT-ASUS United States 10->24 26 us2.smtp.mailhostbox.com 208.91.199.225, 49730, 49731, 587 PUBLIC-DOMAIN-REGISTRYUS United States 10->26 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->44 46 Tries to steal Mail credentials (via file / registry access) 10->46 48 Tries to harvest and steal browser information (history, passwords, etc) 10->48 signatures8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-01-24 03:20:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7whkpnal5efuyi46qf4fwdzt4ohmg2bzmttrjms5nfmfcraanxxq._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Similar samples:
514de837b5ed18cd2d8f89382cf72fda346681fca39a4eb895f06d8da5717fba
Formbook
56cfd7df1800b2c751e56c983a8e33c39b3e2c8d34368c6fa51582f306f2eff9
Formbook
7313bba3ca9b2518cc049ad47ab159f47675c0199fc812b6bc5a0584616b220a
Formbook
fb25063ae8fa5da1296cef1871b69a74ef949073eb715b75dce5ab7909f5e124
Formbook
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
Formbook
+ 5'140 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240124-dx2jtshbgn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
5fd5103a65f57977e96f55256c8e58c3d32b61490fad9226c4819a02bfb02107
MD5 hash:
04916b7d15e66de730168ed0cfaa85a5
SHA1 hash:
a505b1095080de7c8e5e3161df036094eea6f406
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
Parent samples :
a2eabfe59c19d9111faddff46b2d2dd553329ded7321cd67f977d5bb63140542
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
b3c637ac9585fee8c462a31902497f9bd146dcf803a76f963f000c1d9a9974c9
SH256 hash:
d59f335ed911cea16bbdd613ce184d7de5c7c903307ae5c9f3718b7705f5570a
MD5 hash:
16be0e69ad08fe371cac41f11d710461
SHA1 hash:
4d12ddcd060b704357d5deff5fb1b8be1b352e34
Detections:
Saudi_Phish_Trojan
Create hunting rule
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
Parent samples :
1a83ba2bad08f7638bd60d2c15153c028f42048e82adb3702c33c791a4c85c79
0dc0814bf9af68b936d74daf83ecc88ed015d0b1a53c1bf886ea739dcaa1166e
a2eabfe59c19d9111faddff46b2d2dd553329ded7321cd67f977d5bb63140542
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
d20a82f699a3d07796c13d2769b07c6cd8825cc52c35ced5fd6d4a157adb0b36
b3c637ac9585fee8c462a31902497f9bd146dcf803a76f963f000c1d9a9974c9
98bfea598fdbf66e6fe2ec2c44712794464832f0ae920abc93843780c15f506b
9c08f0499db9529b8c171f66432a1185ca004f2762ee77e3de9f3d8a8f5998bd
90ce02725d886ba2f6ae19d75257230e7fb80c9d19fa77d715f3e3226bd07125
SH256 hash:
d49f4815eaf59dffbb76dd61c5343cdd5e56d2054227d341677c87f166c7c1bd
MD5 hash:
3aaf81235499e65f27b2a9e1e75055d1
SHA1 hash:
2f04e42aa3a19d8d2722c9f818976296ef00733c
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
SH256 hash:
696d8061f9402db4adeaad2e56dbabc81240466d99c4d1f4b12b6540dc698ccb
MD5 hash:
0e8b4ac3898ef22febe1cc55f7f27a08
SHA1 hash:
2da85c686502f1195c3780ffb82b751b5cff194c
Detections:
AgentTesla
Create hunting rule
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
Parent samples :
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
6271c329c4f40cf98e90cfa7016bcf533be22f66c7e20446ea721a9a475e2325
SH256 hash:
49f12025017c6a5aec4d4b5c661048b49e05635297a55aba88e28b8ca74ef0ce
MD5 hash:
66cb5e8d0fd00d3f69cc260ce48dec0c
SHA1 hash:
11fb2d2634ad099a38a9814b52b5e2778e7c9e89
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
SH256 hash:
fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def
MD5 hash:
84afeb0f3f99a109ecfa225e3251eccb
SHA1 hash:
2d30673cc1175bb003c5cd538e338d1f0072e763
Link:
https://www.unpac.me/results/bd24b971-aef1-4902-a012-2c1ef0e1068a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fd8ea7b40be9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

arj 95b92222091045553461660f2fe0222ba561a21f7b2226298ee47054a647ec6a

Formbook

Executable exe fd8ea7b40be90b4c239e81785b0f33e38ec3683964e714b25d69585144006def

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/472607/
  
Dropped by
SHA256 95b92222091045553461660f2fe0222ba561a21f7b2226298ee47054a647ec6a
  
Dropped by
MD5 de5c50b5b55f9e69d45515b49c72be07

Comments